EDGAR Filing Documents for 0001752724-24-053444

Form N-CEN - Annual Report for Registered Investment Companies:

SEC Accession No. 0001752724-24-053444

Filing Date

2024-03-13

Accepted

2024-03-13 14:12:31

Documents

Period of Report

2023-12-31

Effectiveness Date

2024-03-13

Document Format Files

Seq	Description	Document	Type	Size
1		primary_doc.html	N-CEN
1		primary_doc.xml	N-CEN	125289
2		institutionalindexfund2.15.txt	INTERNAL CONTROL RPT	4499
	Complete submission text file	0001752724-24-053444.txt		133053

Series and Classes/Contracts Information:

Existing
	Status	Name	Ticker Symbol
CIK 0000862084
Series S000002853		Vanguard Institutional Index Fund
Class/Contract C000007825		Institutional Shares	VINIX
Class/Contract C000007826		Institutional Plus Shares	VIIIX
	Status	Name	Ticker Symbol
CIK 0000862084
Series S000002855		Vanguard Institutional Total Stock Market Index Fund
Class/Contract C000007828		Institutional Shares	VITNX
Class/Contract C000007829		Institutional Plus Shares	VITPX
	Status	Name	Ticker Symbol
CIK 0000862084
Series S000082147		Vanguard Extended Market Index Fund
Class/Contract C000245426		ETF Shares	VXF
Class/Contract C000245427		Institutional Select Shares	VSEMX
Class/Contract C000245428		Investor Shares	VEXMX
Class/Contract C000245429		Institutional Shares	VIEIX
Class/Contract C000245430		Admiral Shares	VEXAX
Class/Contract C000245431		Institutional Plus Shares	VEMPX

Mailing Address PO BOX 2600 V26 VALLEY FORGE PA 19482

Business Address PO BOX 2600 V26 VALLEY FORGE PA 19482 6106691000

VANGUARD INSTITUTIONAL INDEX FUNDS (Filer) CIK: 0000862084 (see all company filings)